International Energy Conservation Code, commercial
Maine: International Energy Conservation Code (commercial), lead only
DOE’s energycodes.gov shows Maine on the 2021 IECC, effective Apr 7, 2025. Maine’s own records for the IECC commercial have not been read yet.
Tracker reading
Edition a tracker lists
2021 IECC
Lead only
How it was checked
Lead only
A tracker lists this edition. Nobody has checked it against the state’s own record yet.
What the trackers say
Code adoption trackers are a cross-check. They are not Maine’s own record.
DOE’s energycodes.govCross-check
2021 IECC, effective Apr 7, 2025
Current State Code: 2021 IECC and ASHRAE 90.1-2019; State Amendments: Yes; Equivalent Code: 90.1-2019; Effective Date: 04/07/2025; Enforcement: Mandatory Statewide